Drag the mouse wheel in WORD, and the page will not move up and down, but will be enlarged and reduced. What happened?

1. Open word20 16 on your computer, and then click the "File" menu in the upper left corner.

2. In the drop-down menu that opens, we click the "Options" menu item.

3. Next, the word Options window of word20 16 will pop up, and click the "Custom Ribbon" menu item in the left column of the window.

4. Then, in the drop-down menu on the right, we select the menu item "Command is not in the ribbon".

5. Then find the menu item "Auto Scroll" in the command menu below, and then click the "Add" button.

6. At this point, an "Auto Scroll" button will be added to the toolbar. When we click this button, the document will automatically scroll.